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A simple thinko in ginRedoUpdateMetapage, namely failing to increment a loop counter, led to inserting records into the last pending-list page in the wrong order (the opposite of that intended). So far as I can tell, this would not upset the code that eventually flushes pending items into the main part of the GIN index. But it did break the code that searched the pending list for matches, resulting in transient failure to find matching entries during index lookups, as illustrated in bug #6307 from Maksym Boguk. Back-patch to 8.4 where the incorrect code was introduced. |
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README.git |
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Changes between all PostgreSQL releases are recorded in the file HISTORY. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.